原理图utu2440-S-V4.1 ....................\orcad格式原理图 ....................\...............\UTU2440-S-V41.DSN ....................\pads2007_PCB封装库 ....................\..................\PADS2007PCBLibraries.rar ....................\utu2440-s-v41.pdf ....................\utu2440-s-v41装配尺寸示意图.pdf